CN106123205A - Moveable air conditioner and coolant leakage detection method thereof - Google Patents
Moveable air conditioner and coolant leakage detection method thereof Download PDFInfo
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- CN106123205A CN106123205A CN201610440097.7A CN201610440097A CN106123205A CN 106123205 A CN106123205 A CN 106123205A CN 201610440097 A CN201610440097 A CN 201610440097A CN 106123205 A CN106123205 A CN 106123205A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/002—Investigating fluid-tightness of structures by using thermal means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Atmospheric Sciences (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Fuzzy Systems (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of moveable air conditioner and coolant leakage detection method thereof, said method comprising the steps of: when compressor is opened, obtain temperature averages T1Ave and coil temperature meansigma methods T2Ave of vaporizer of the windward side of vaporizer；When the operation time of compressor reaches the first Preset Time, temperature averages T1uc and coil temperature meansigma methods T2uc of vaporizer of the windward side of vaporizer is obtained every the second Preset Time, and when the operation time of compressor reaches three Preset Times, obtain the return air temperature of condenser, the delivery temperature of compressor and the operating current of compressor；Operating current according to T1Ave, T1uc, T2Ave, T2uc, the return air temperature of condenser, the delivery temperature of compressor and compressor judges whether moveable air conditioner occurs coolant leakage.The method can effectively judge whether moveable air conditioner occurs coolant leakage.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly to a kind of moveable air conditioner and coolant leakage detection method thereof.
Background technology
Mobile air conditioner technology is fetched water from double wind wheels till now of not fetching water in early days and is cooled down condenser, constant at casing
In the case of, ability and efficiency are more and more higher.By means of power in split air conditioner technology develop under conditions of, moveable air conditioner has had the biggest
Improve, but, due to own structural characteristics, moveable air conditioner cannot accomplish the level as split air conditioner in some aspects.
Such as, existing secondary refrigerant leakage detection control technology has good protective effect for system and compressor, but owing to moving
The own structural characteristics of dynamic formula air-conditioner, if directly used, it will problems with occurs:
Moveable air conditioner can produce water when heating operation, the chassis below condenser accumulates, if in this mistake
Journey does not gather the water level on chassis, and simultaneously to chassis draining, then will result in condensed water and too much icing phenomenon occurs, Jin Erbing
, there is the possibility of erroneous judgement secondary refrigerant leakage, greatly reduce refrigeration or the system of system in stifled condenser air concentrator so that system temperature is too low
The hot operation time so that the operational effect that consumer is mistakenly considered air-conditioning is bad.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention
One purpose is to propose the coolant leakage detection method of a kind of moveable air conditioner, and the method can effectively judge movable type
Whether air-conditioner there is coolant leakage.
Further object is that a kind of moveable air conditioner of proposition.
For achieving the above object, one aspect of the present invention embodiment proposes the coolant leakage detection of a kind of moveable air conditioner
Method, described moveable air conditioner includes vaporizer, condenser, water pump, chassis and compressor, wherein, described water pump correspondence institute
Stating condenser to arrange, described chassis is arranged on the lower section of described condenser, said method comprising the steps of: at described compressor
During unlatching, obtain the temperature averages T1Ave of the windward side of described vaporizer and the coil temperature meansigma methods of described vaporizer
T2Ave；When the operation time of described compressor reaches the first Preset Time, obtain described vaporizer every the second Preset Time
The temperature averages T1uc of windward side and coil temperature meansigma methods T2uc of described vaporizer, and in the operation of described compressor
When time reaches three Preset Times, obtain the return air temperature of described condenser, the delivery temperature of described compressor and described
The operating current of compressor；And according to temperature averages T1Ave and T1uc of windward side of described vaporizer, described vaporizer
Coil temperature meansigma methods T2Ave and T2uc, the return air temperature of described condenser, the delivery temperature of described compressor and described pressure
The operating current of contracting machine judges whether described moveable air conditioner occurs coolant leakage.
The coolant leakage detection method of moveable air conditioner according to embodiments of the present invention, when compressor is opened, obtains
The temperature averages T1Ave of the windward side of vaporizer and coil temperature meansigma methods T2Ave of vaporizer, and in the operation of compressor
When time reaches the first Preset Time, obtain temperature averages T1uc and the steaming of the windward side of vaporizer every the second Preset Time
Send out coil temperature meansigma methods T2uc of device, and when the operation time of compressor reaches three Preset Times, obtain condenser
Return air temperature, the delivery temperature of compressor and the operating current of compressor, finally, according to the temperature of the windward side of vaporizer
Meansigma methods T1Ave and T1uc, coil temperature meansigma methods T2Ave of vaporizer and T2uc, the return air temperature of condenser, compressor
The operating current of delivery temperature and compressor judges whether moveable air conditioner occurs coolant leakage, thus realizes portable empty
Adjust effective judgement of device coolant leakage, it is to avoid judge by accident, it is ensured that heating or the refrigerating operaton time of moveable air conditioner, improve
Consumer's Experience.
According to one embodiment of present invention, when described moveable air conditioner, in a chiller mode or dehumidification mode runs
Time, if the return air temperature of described condenser more than the first preset temperature and less than or equal to the second preset temperature, described T1uc with
The absolute value of the difference between described T2uc presets the difference between cryogenic temperature value, described T2Ave and T2uc less than first
The absolute value that absolute value presets the difference between cryogenic temperature value, described T1Ave and described T1uc less than second is pre-less than the 3rd
If the delivery temperature of temperature, described compressor is pre-less than first more than the operating current of the 4th preset temperature and described compressor
If electric current, then judge described moveable air conditioner generation coolant leakage.
According to one embodiment of present invention, when described moveable air conditioner runs with heating mode, if described cold
The return air temperature of condenser is pre-less than first more than the absolute value of the 5th preset temperature, difference between described T1uc and described T2uc
It is equipped with the absolute value of the difference between hot temperature value, described T2Ave and T2uc to preset less than second and heat temperature value, described
The absolute value of the difference between T1Ave and described T1uc less than the 3rd preset temperature, described compressor delivery temperature more than the
The operating current of four preset temperatures and described compressor is less than the first predetermined current, then judge that described moveable air conditioner occurs
Coolant leakage.
According to one embodiment of present invention, when described moveable air conditioner runs with heating mode, also judge described
The rate of change of the return air temperature of condenser, if the rate of change of the return air temperature of described condenser presets speed more than first
Rate, the most first controls described moveable air conditioner and performs refrigeration defrost, and judge described movable air conditioner after refrigeration defrost terminates
Whether device there is coolant leakage.
According to one embodiment of present invention, if it is determined that described moveable air conditioner generation coolant leakage, then institute is controlled
State moveable air conditioner to shut down, and show fault message.
For achieving the above object, another aspect of the present invention embodiment proposes a kind of moveable air conditioner, including: evaporation
Device, condenser, water pump, chassis and compressor, wherein, the corresponding described condenser of described water pump is arranged, and described chassis is arranged on institute
State the lower section of condenser；Control module, for when described compressor is opened, the temperature of the windward side obtaining described vaporizer is put down
Coil temperature meansigma methods T2Ave of average T1Ave and described vaporizer, and it is pre-to reach first in the operation time of described compressor
If during the time, obtain the temperature averages T1uc of windward side of described vaporizer and described vaporizer every the second Preset Time
Coil temperature meansigma methods T2uc, and when the operation time of described compressor reaches three Preset Times, obtain described condensation
The return air temperature of device, the delivery temperature of described compressor and the operating current of described compressor, described control module is according to institute
State temperature averages T1Ave and T1uc of the windward side of vaporizer, coil temperature meansigma methods T2Ave of described vaporizer and
The operating current of T2uc, the return air temperature of described condenser, the delivery temperature of described compressor and described compressor judges described
Whether moveable air conditioner there is coolant leakage.
Moveable air conditioner according to embodiments of the present invention, when compressor is opened, control module obtains meeting of vaporizer
The temperature averages T1Ave in wind face and coil temperature meansigma methods T2Ave of vaporizer, and reach in the operation time of compressor
During one Preset Time, obtain temperature averages T1uc and the coil pipe of vaporizer of the windward side of vaporizer every the second Preset Time
Temperature averages T2uc, and when the operation time of compressor reaches three Preset Times, obtain condenser return air temperature,
The delivery temperature of compressor and the operating current of compressor, finally, according to the temperature averages T1Ave of the windward side of vaporizer
With T1uc, coil temperature meansigma methods T2Ave of vaporizer and T2uc, the return air temperature of condenser, the delivery temperature of compressor and
The operating current of compressor judges whether moveable air conditioner occurs coolant leakage, thus realizes letting out moveable air conditioner coolant
Effective judgement of leakage, it is to avoid judge by accident, it is ensured that heating or the refrigerating operaton time of moveable air conditioner, improve Consumer's Experience.
According to one embodiment of present invention, when described moveable air conditioner, in a chiller mode or dehumidification mode runs
Time, if the return air temperature of described condenser more than the first preset temperature and less than or equal to the second preset temperature, described T1uc with
The absolute value of the difference between described T2uc presets the difference between cryogenic temperature value, described T2Ave and T2uc less than first
The absolute value that absolute value presets the difference between cryogenic temperature value, described T1Ave and described T1uc less than second is pre-less than the 3rd
If the delivery temperature of temperature, described compressor is pre-less than first more than the operating current of the 4th preset temperature and described compressor
If electric current, described control module then judges described moveable air conditioner generation coolant leakage.
According to one embodiment of present invention, when described moveable air conditioner runs with heating mode, if described cold
The return air temperature of condenser is pre-less than first more than the absolute value of the 5th preset temperature, difference between described T1uc and described T2uc
It is equipped with the absolute value of the difference between hot temperature value, described T2Ave and T2uc to preset less than second and heat temperature value, described
The absolute value of the difference between T1Ave and described T1uc less than the 3rd preset temperature, described compressor delivery temperature more than the
The operating current of four preset temperatures and described compressor is less than the first predetermined current, and described control module then judges described movement
Formula air-conditioner generation coolant leakage.
According to one embodiment of present invention, when described moveable air conditioner runs with heating mode, described control mould
Block also judges the rate of change of the return air temperature of described condenser, wherein, if the change of the return air temperature of described condenser is fast
Rate is more than the first scheduled rate, and described control module the most first controls described moveable air conditioner and performs refrigeration defrost, and in refrigeration
Defrost judges whether described moveable air conditioner occurs coolant leakage after terminating.
According to one embodiment of present invention, if it is determined that described moveable air conditioner generation coolant leakage, described control
Module then controls described moveable air conditioner and shuts down, and by the display screen display fault message of described moveable air conditioner.
Accompanying drawing explanation
Fig. 1 is the flow chart of the coolant leakage detection method of moveable air conditioner according to embodiments of the present invention.
Fig. 2 a is the left view of moveable air conditioner according to an embodiment of the invention.
Fig. 2 b is the top view of moveable air conditioner according to an embodiment of the invention.
Reference: water pump 1, water level switch 2, condenser 3, chassis 4, air draft spiral case 5, vaporizer 6.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The moveable air conditioner proposed according to embodiments of the present invention and coolant leakage detection thereof are described with reference to the accompanying drawings
Method.
Fig. 1 is the flow chart of the coolant leakage detection method of moveable air conditioner according to embodiments of the present invention.
In an embodiment of the present invention, moveable air conditioner can include vaporizer, condenser, water pump, chassis and compressor,
Wherein, water pump correspondence condenser is arranged, and chassis is arranged on the lower section of condenser.Specifically, as illustrated in figures 2 a-2b, portable empty
Adjust device can also include air draft spiral case and water level switch.
As it is shown in figure 1, the coolant leakage detection method of this moveable air conditioner said method comprising the steps of:
S1, when compressor is opened, obtains temperature averages T1Ave and the coil pipe temperature of vaporizer of the windward side of vaporizer
Degree meansigma methods T2Ave.
Specifically, heat detector can be set in the windward side structure of vaporizer to detect the windward side temperature of vaporizer
T1, and heat detector is set at the stream medium position of vaporizer to detect the coil temperature T2 of vaporizer.In movable type
After air-conditioner works on power, obtain the temperature averages T1Ave of the windward side of compressor starts moment (a period of time) vaporizer
With coil temperature meansigma methods T2Ave of vaporizer, and store.
S2, when the operation time of compressor reaches the first Preset Time, obtains vaporizer every the second Preset Time
The temperature averages T1uc of windward side and coil temperature meansigma methods T2uc of vaporizer, and reach in the operation time of compressor
During three Preset Times, obtain the return air temperature of condenser, the delivery temperature of compressor and the operating current of compressor.
Wherein, the first to the 3rd Preset Time can be demarcated according to practical situation, and such as, the first Preset Time is permissible
For 1200s, the second Preset Time can be 6s, and the 3rd Preset Time can be 1200s+2min.
S3, according to temperature averages T1Ave and T1uc of windward side, the coil temperature meansigma methods of vaporizer of vaporizer
The operating current of T2Ave and T2uc, the return air temperature of condenser, the delivery temperature of compressor and compressor judges movable air conditioner
Whether device there is coolant leakage.
Specifically, it is open at the first Preset Time (such as 1200s) to the 3rd Preset Time (such as 1200s+ when compressor
Time in 2min), every 6s calculates temperature averages T1uc and the coil temperature meansigma methods of vaporizer of the windward side of flush distillation device
T2uc.When on the time point that the operation time of compressor reaches the 3rd Preset Time (such as 1200s+2min), obtain condenser
Return air temperature, the delivery temperature of compressor and the operating current of compressor, and according to the return air temperature of condenser, compressor
Delivery temperature, the operating current of compressor, temperature averages T1Ave and T1uc of windward side of vaporizer and vaporizer
Coil temperature meansigma methods T2Ave and T2uc judge whether moveable air conditioner occurs coolant leakage.
According to one embodiment of present invention, when moveable air conditioner in a chiller mode or dehumidification mode run time, as
Really the return air temperature of condenser is more than the first preset temperature and less than or equal to the difference between the second preset temperature, T1uc and T2uc
Absolute value preset the absolute value of difference between cryogenic temperature value, T2Ave and T2uc less than first and preset refrigeration less than second
The absolute value of the difference between temperature value, T1Ave and T1uc is more than the 4th less than the delivery temperature of the 3rd preset temperature, compressor
The operating current of preset temperature and compressor is less than the first predetermined current, then judge moveable air conditioner generation coolant leakage.
Wherein, the first to the 3rd preset temperature, the first predetermined current, first preset cryogenic temperature value and second preset refrigeration
Temperature value all can be demarcated according to practical situation, and such as, the first preset temperature can be current outdoor ambient temperature such as 25 DEG C,
Second preset temperature can be 45 DEG C, and the 3rd preset temperature can be 3 DEG C, and the 4th preset temperature can be 100 DEG C, and first presets
Electric current can be 4A.
It is to say, when moveable air conditioner in a chiller mode or dehumidification mode run time, when following condition is satisfied by
Time, it can be determined that moveable air conditioner generation coolant leakage:
Return air temperature T3≤the second preset temperature such as 45 DEG C of 25 DEG C of ＜ condensers of outdoor environment temperature during (a) refrigeration；
B () | T1uc-T2uc | ＜ first presets cryogenic temperature value coolT1；
C () | T2Ave-T2uc | ＜ second presets cryogenic temperature value coolT2；
(d) | T1Ave-T1uc | ＜ the 3rd preset temperature such as 3 DEG C；
E delivery temperature ＞ the 4th preset temperature such as 100 DEG C of () compressor and the operating current ＜ first of compressor preset
Electric current such as 4A.
According to one embodiment of present invention, when moveable air conditioner runs with heating mode, if condenser return
Air temperature preset less than first more than the absolute value of difference between the 5th preset temperature, T1uc and T2uc heat temperature value,
The absolute value of the difference between T2Ave and T2uc is less than the exhausted of the second default difference heated between temperature value, T1Ave and T1uc
Value is less than more than the operating current of the 4th preset temperature and compressor less than the delivery temperature of the 3rd preset temperature, compressor
First predetermined current, then judge moveable air conditioner generation coolant leakage.Wherein, the 5th preset temperature, first preset heat temperature
Angle value and second is preset and is heated temperature value and can demarcate according to practical situation, and such as, the 5th preset temperature can be 0 DEG C.
It is to say, when moveable air conditioner runs with heating mode, when following condition is satisfied by, it can be determined that move
Dynamic formula air-conditioner generation coolant leakage:
The return air temperature T3 of (a) condenser >=the 5th preset temperature such as 0 DEG C；
B () | T1uc-T2uc | ＜ first presets and heats temperature value heatT1；
C () | T2Ave-T2uc | ＜ second presets and heats temperature value heatT2；
(d) | T1Ave-T1uc | ＜ the 3rd preset temperature such as 3 DEG C；
E delivery temperature ＞ the 4th preset temperature such as 100 DEG C of () compressor and the operating current ＜ first of compressor preset
Electric current such as 4A.
If it is determined that moveable air conditioner generation coolant leakage, then control moveable air conditioner and shut down, and show that fault is believed
Breath.When moveable air conditioner is started shooting again, fault message will be automatically cleared, and continue to move according to above-mentioned conditional judgment
Whether formula air-conditioner there is coolant leakage.If above-mentioned condition has a condition to be unsatisfactory for, then judge that moveable air conditioner is not sent out
Raw coolant leakage, whether the most no longer detection coolant leaks, until carrying out coolant detection again during start next time.
According to one embodiment of present invention, when moveable air conditioner runs with heating mode, also judge condenser
The rate of change of return air temperature, if the rate of change of the return air temperature of condenser is more than the first scheduled rate, the most first controls to move
Dynamic formula air-conditioner performs refrigeration defrost, and judges whether moveable air conditioner occurs coolant leakage after refrigeration defrost terminates.
Specifically, in moveable air conditioner heating process, if it occur that frosting or icing, condensation will be caused
The return air temperature T3 change of device is too fast, in actual applications, may reduce suddenly 2-3 DEG C, if now directly according to above-mentioned bar
Part judges whether coolant leaks, then it may happen that judge by accident, it is therefore desirable to first controls moveable air conditioner and performs refrigerationization
Frost, and after defrost completes, it is judged that whether moveable air conditioner there is coolant leakage, thus improves the accurate of judgement further
Property.
It addition, in an embodiment of the present invention, run or the portable sky of judgement with heating mode at moveable air conditioner
When adjusting device whether coolant leakage to occur, control water pump in running order, so that the water level of condenser is less than the water level in chassis,
Thus effectively preventing water level too high, condenser is the coldest, frosting and icing occurs, causes system temperature unchanged, and then causes cold
The erroneous judgement of matchmaker's leakage.
In sum, the coolant leakage detection method of moveable air conditioner according to embodiments of the present invention, open at compressor
Qi Shi, obtains temperature averages T1Ave and coil temperature meansigma methods T2Ave of vaporizer of the windward side of vaporizer, and in pressure
When the operation time of contracting machine reaches the first Preset Time, obtain the temperature-averaging of the windward side of vaporizer every the second Preset Time
Value T1uc and coil temperature meansigma methods T2uc of vaporizer, and when the operation time of compressor reaches three Preset Times,
Obtain the return air temperature of condenser, the delivery temperature of compressor and the operating current of compressor, finally, meeting according to vaporizer
Temperature averages T1Ave and T1uc in wind face, coil temperature meansigma methods T2Ave of vaporizer and T2uc, the return air temperature of condenser
The operating current of degree, the delivery temperature of compressor and compressor judges whether moveable air conditioner occurs coolant leakage, thus real
The now effective judgement to moveable air conditioner coolant leakage, it is to avoid judge by accident, it is ensured that the heating or freeze of moveable air conditioner
The operation time, improve Consumer's Experience.
Fig. 2 is the structural representation of moveable air conditioner according to an embodiment of the invention.As in figure 2 it is shown, this moves
Formula air-conditioner comprises the steps that water pump 1, water level switch 2, condenser 3, chassis 4, air draft spiral case 5, vaporizer 6, compressor (in figure not
Specifically illustrate) and control module (not specifically illustrated in figure).
Wherein, the corresponding condenser 3 of water pump 1 is arranged, and chassis 4 is arranged on the lower section of condenser 3.Control module is in compression
When machine is opened, obtain temperature averages T1Ave and coil temperature meansigma methods T2Ave of vaporizer 6 of the windward side of vaporizer 6,
And when the operation time of compressor reaches the first Preset Time, obtain the windward side of vaporizer 6 every the second Preset Time
Coil temperature meansigma methods T2uc of temperature averages T1uc and vaporizer 6, and it is pre-to reach the 3rd in the operation time of compressor
If during the time, obtain the return air temperature of condenser 3, the delivery temperature of compressor and the operating current of compressor, control module
Temperature averages T1Ave and T1uc of the windward side according to vaporizer 6, coil temperature meansigma methods T2Ave of vaporizer 6 and
Whether the operating current of T2uc, the return air temperature of condenser 3, the delivery temperature of compressor and compressor judges moveable air conditioner
There is coolant leakage.
Specifically, heat detector can be set in the windward side structure of vaporizer 6 to detect the windward side temperature of vaporizer
Degree T1, and heat detector is set at the stream medium position of vaporizer 6 to detect the coil temperature T2 of vaporizer.Moving
After formula air-conditioner works on power, control module obtains compressor starts moment (a period of time) vaporizer 6 by heat detector
The temperature averages T1Ave of windward side and coil temperature meansigma methods T2Ave of vaporizer 6, and store.
When compressor is open at the first Preset Time (such as 1200s) to time in the 3rd Preset Time (such as 1200s+2min),
The every 6s of control module calculates temperature averages T1uc and the coil temperature meansigma methods of vaporizer 6 of the windward side of flush distillation device 6
T2uc.When on the time point that the operation time of compressor reaches the 3rd Preset Time (such as 1200s+2min), control module obtains
Take the return air temperature of condenser 3, the delivery temperature of compressor and the operating current of compressor, and according to the return air of condenser 3
Temperature, the delivery temperature of compressor, the operating current of compressor, temperature averages T1Ave and T1uc of windward side of vaporizer 6
And coil temperature meansigma methods T2Ave of vaporizer 6 and T2uc judge whether moveable air conditioner occurs coolant leakage.
According to one embodiment of present invention, when moveable air conditioner in a chiller mode or dehumidification mode run time, as
Really the return air temperature of condenser 3 is more than the first preset temperature and less than or equal to the difference between the second preset temperature, T1uc and T2uc
The absolute value of value is preset the absolute value of the difference between cryogenic temperature value, T2Ave and T2uc and is equipped with in advance less than second less than first
The absolute value of the difference between cold temperature value, T1Ave and T1uc less than the 3rd preset temperature, compressor delivery temperature more than the
The operating current of four preset temperatures and compressor is less than the first predetermined current, and control module then judges that moveable air conditioner occurs
Coolant leakage.Wherein, the first preset temperature can be current outdoor ambient temperature such as 25 DEG C, and the second preset temperature can be 45
DEG C, the 3rd preset temperature can be 3 DEG C, and the 4th preset temperature can be 100 DEG C, and the first predetermined current can be 4A.
It is to say, when moveable air conditioner in a chiller mode or dehumidification mode run time, when following condition is satisfied by
Time, control module may determine that moveable air conditioner generation coolant leakage:
Return air temperature T3≤the second preset temperature such as 45 DEG C of 25 DEG C of ＜ condensers of outdoor environment temperature during (a) refrigeration；
B () | T1uc-T2uc | ＜ first presets cryogenic temperature value coolT1；
C () | T2Ave-T2uc | ＜ second presets cryogenic temperature value coolT2；
(d) | T1Ave-T1uc | ＜ the 3rd preset temperature such as 3 DEG C；
E delivery temperature ＞ the 4th preset temperature such as 100 DEG C of () compressor and the operating current ＜ first of compressor preset
Electric current such as 4A.
According to one embodiment of present invention, when moveable air conditioner runs with heating mode, if condenser 3 return
Air temperature preset less than first more than the absolute value of difference between the 5th preset temperature, T1uc and T2uc heat temperature value,
The absolute value of the difference between T2Ave and T2uc is less than the exhausted of the second default difference heated between temperature value, T1Ave and T1uc
Value is less than more than the operating current of the 4th preset temperature and compressor less than the delivery temperature of the 3rd preset temperature, compressor
First predetermined current, control module then judges moveable air conditioner generation coolant leakage.Wherein, the 5th preset temperature can be 0
℃。
It is to say, when moveable air conditioner runs with heating mode, when following condition is satisfied by, control module can
To judge moveable air conditioner generation coolant leakage:
The return air temperature T3 of (a) condenser >=the 5th preset temperature such as 0 DEG C；
B () | T1uc-T2uc | ＜ first presets and heats temperature value heatT1；
C () | T2Ave-T2uc | ＜ second presets and heats temperature value heatT2；
(d) | T1Ave-T1uc | ＜ the 3rd preset temperature such as 3 DEG C；
E delivery temperature ＞ the 4th preset temperature such as 100 DEG C of () compressor and the operating current ＜ first of compressor preset
Electric current such as 4A.
If it is determined that moveable air conditioner generation coolant leakage, control module then controls moveable air conditioner and shuts down, and leads to
Cross the display screen display fault message of moveable air conditioner.When moveable air conditioner is started shooting again, fault message will be by automatically
Remove, and control module continues whether coolant leakage occurs according to above-mentioned conditional judgment moveable air conditioner.If above-mentioned bar
Part has a condition to be unsatisfactory for, and control module then judges that moveable air conditioner does not occurs coolant leakage, the most no longer detects coolant
Whether leak, until carrying out coolant detection again during start next time.
According to one embodiment of present invention, when moveable air conditioner runs with heating mode, control module also judges
The rate of change of the return air temperature of condenser 3, if the rate of change of the return air temperature of condenser 3 is more than the first scheduled rate,
Control module the most first controls moveable air conditioner and performs refrigeration defrost, and judges that moveable air conditioner is after refrigeration defrost terminates
No generation coolant leakage.
Specifically, in moveable air conditioner heating process, if it occur that frosting or icing, condensation will be caused
The return air temperature T3 change of device is too fast, in actual applications, may reduce suddenly 2-3 DEG C, if the now direct root of control module
Whether leak according to above-mentioned conditional judgment coolant, then it may happen that judge by accident, it is therefore desirable to first control moveable air conditioner and hold
Row refrigeration defrost, and after defrost completes, it is judged that whether moveable air conditioner there is coolant leakage, thus improves judgement further
Accuracy.
It addition, in an embodiment of the present invention, run or the portable sky of judgement with heating mode at moveable air conditioner
When adjusting device whether coolant leakage to occur, it is in running order that control module controls water pump, so that the water level of condenser 3 is less than chassis
In water level, thus effectively prevent water level too high, condenser is the coldest, frosting and icing occurs, causes system temperature unchanged, enters
And cause the erroneous judgement of coolant leakage.
Moveable air conditioner according to embodiments of the present invention, when compressor is opened, control module obtains meeting of vaporizer
The temperature averages T1Ave in wind face and coil temperature meansigma methods T2Ave of vaporizer, and reach in the operation time of compressor
During one Preset Time, obtain temperature averages T1uc and the coil pipe of vaporizer of the windward side of vaporizer every the second Preset Time
Temperature averages T2uc, and when the operation time of compressor reaches three Preset Times, obtain condenser return air temperature,
The delivery temperature of compressor and the operating current of compressor, finally, according to the temperature averages T1Ave of the windward side of vaporizer
With T1uc, coil temperature meansigma methods T2Ave of vaporizer and T2uc, the return air temperature of condenser, the delivery temperature of compressor and
The operating current of compressor judges whether moveable air conditioner occurs coolant leakage, thus realizes letting out moveable air conditioner coolant
Effective judgement of leakage, it is to avoid judge by accident, it is ensured that heating or the refrigerating operaton time of moveable air conditioner, improve Consumer's Experience.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time
Pin ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or imply that the device of indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (10)
1. the coolant leakage detection method of a moveable air conditioner, it is characterised in that described moveable air conditioner includes evaporation
Device, condenser, water pump, chassis and compressor, wherein, the corresponding described condenser of described water pump is arranged, and described chassis is arranged on institute
State the lower section of condenser, said method comprising the steps of:
When described compressor is opened, obtain the temperature averages T1Ave of the windward side of described vaporizer and described vaporizer
Coil temperature meansigma methods T2Ave；
When the operation time of described compressor reaches the first Preset Time, obtain described vaporizer every the second Preset Time
The temperature averages T1uc of windward side and coil temperature meansigma methods T2uc of described vaporizer, and when the operation of described compressor
Between when reaching three Preset Times, obtain the return air temperature of described condenser, the delivery temperature of described compressor and described pressure
The operating current of contracting machine；And
Temperature averages T1Ave and T1uc of the windward side according to described vaporizer, the coil temperature meansigma methods of described vaporizer
The operating current of T2Ave and T2uc, the return air temperature of described condenser, the delivery temperature of described compressor and described compressor is sentenced
Whether disconnected described moveable air conditioner there is coolant leakage.
The coolant leakage detection method of moveable air conditioner the most according to claim 1, it is characterised in that when described movement
When formula air-conditioner is in a chiller mode or dehumidification mode runs,
If the return air temperature of described condenser more than the first preset temperature and less than or equal to the second preset temperature, described T1uc with
The absolute value of the difference between described T2uc presets the difference between cryogenic temperature value, described T2Ave and T2uc less than first
The absolute value that absolute value presets the difference between cryogenic temperature value, described T1Ave and described T1uc less than second is pre-less than the 3rd
If the delivery temperature of temperature, described compressor is pre-less than first more than the operating current of the 4th preset temperature and described compressor
If electric current, then judge described moveable air conditioner generation coolant leakage.
The coolant leakage detection method of moveable air conditioner the most according to claim 1 and 2, it is characterised in that when described
When moveable air conditioner runs with heating mode,
If the return air temperature of described condenser more than the 5th preset temperature, difference between described T1uc and described T2uc exhausted
Value is preset the absolute value heating difference between temperature value, described T2Ave and T2uc less than first preset less than second and heat
The absolute value of the difference between temperature value, described T1Ave and described T1uc is less than the 3rd preset temperature, the aerofluxus of described compressor
Temperature is less than the first predetermined current more than the operating current of the 4th preset temperature and described compressor, then judge described movable type
Air-conditioner generation coolant leakage.
The coolant leakage detection method of moveable air conditioner the most according to claim 3, it is characterised in that when described movement
When formula air-conditioner runs with heating mode, also judge the rate of change of the return air temperature of described condenser,
If the rate of change of the return air temperature of described condenser is more than the first scheduled rate, the most first control described movable air conditioner
Device performs refrigeration defrost, and judges whether described moveable air conditioner occurs coolant leakage after refrigeration defrost terminates.
The coolant leakage detection method of moveable air conditioner the most according to claim 3, it is characterised in that if it is determined that institute
State moveable air conditioner generation coolant leakage, then control described moveable air conditioner and shut down, and show fault message.
6. a moveable air conditioner, it is characterised in that including:
Vaporizer, condenser, water pump, chassis and compressor, wherein, the corresponding described condenser of described water pump is arranged, described chassis
It is arranged on the lower section of described condenser；
Control module, for when described compressor is opened, obtain described vaporizer windward side temperature averages T1Ave with
Coil temperature meansigma methods T2Ave of described vaporizer, and when the operation time of described compressor reaches the first Preset Time, often
The coil temperature of the temperature averages T1uc and described vaporizer that obtain the windward side of described vaporizer every the second Preset Time is put down
Average T2uc, and when the operation time of described compressor reaches three Preset Times, obtain the return air temperature of described condenser
Degree, the delivery temperature of described compressor and the operating current of described compressor, described control module is according to described vaporizer
Temperature averages T1Ave and T1uc of windward side, coil temperature meansigma methods T2Ave of described vaporizer and T2uc, described condensation
The operating current of the return air temperature of device, the delivery temperature of described compressor and described compressor judges that described moveable air conditioner is
No generation coolant leakage.
Moveable air conditioner the most according to claim 6, it is characterised in that when described moveable air conditioner in a chiller mode
Or when dehumidification mode runs,
If the return air temperature of described condenser more than the first preset temperature and less than or equal to the second preset temperature, described T1uc with
The absolute value of the difference between described T2uc presets the difference between cryogenic temperature value, described T2Ave and T2uc less than first
The absolute value that absolute value presets the difference between cryogenic temperature value, described T1Ave and described T1uc less than second is pre-less than the 3rd
If the delivery temperature of temperature, described compressor is pre-less than first more than the operating current of the 4th preset temperature and described compressor
If electric current, described control module then judges described moveable air conditioner generation coolant leakage.
8. according to the moveable air conditioner described in claim 6 or 7, it is characterised in that when described moveable air conditioner is to heat
During mode operation,
If the return air temperature of described condenser more than the 5th preset temperature, difference between described T1uc and described T2uc exhausted
Value is preset the absolute value heating difference between temperature value, described T2Ave and T2uc less than first preset less than second and heat
The absolute value of the difference between temperature value, described T1Ave and described T1uc is less than the 3rd preset temperature, the aerofluxus of described compressor
Temperature is less than the first predetermined current more than the operating current of the 4th preset temperature and described compressor, and described control module is then sentenced
Disconnected described moveable air conditioner generation coolant leakage.
Moveable air conditioner the most according to claim 8, it is characterised in that when described moveable air conditioner is with heating mode
During operation, described control module also judges the rate of change of the return air temperature of described condenser, wherein, if described condenser
The rate of change of return air temperature is more than the first scheduled rate, and described control module the most first controls described moveable air conditioner and performs system
Cold defrost, and judge whether described moveable air conditioner occurs coolant leakage after refrigeration defrost terminates.
Moveable air conditioner the most according to claim 8, it is characterised in that if it is determined that described moveable air conditioner is sent out
Raw coolant leakage, described control module then controls described moveable air conditioner and shuts down, and showing by described moveable air conditioner
Display screen display fault message.
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| CN106839283A (en) * | 2017-01-05 | 2017-06-13 | 青岛海尔空调器有限总公司 | The detection method of coolant leakage |
| CN108088051A (en) * | 2017-12-01 | 2018-05-29 | 芜湖美智空调设备有限公司 | Fault detection method, air conditioner and the storage medium of cooler compressor |
| WO2019015535A1 (en) * | 2017-07-17 | 2019-01-24 | 青岛海尔空调器有限总公司 | Method for detecting and addressing fault in air conditioner and undercooling tube set thereof |
| CN109631229A (en) * | 2019-01-31 | 2019-04-16 | 四川长虹空调有限公司 | The determination method of refrigeration system refrigerant fast leak |
| CN110940047A (en) * | 2018-09-21 | 2020-03-31 | 奥克斯空调股份有限公司 | Refrigerant leakage detection method and air conditioner |
| CN111256253A (en) * | 2020-01-19 | 2020-06-09 | 珠海格力电器股份有限公司 | Refrigerant storage amount detection method, refrigerant storage amount detection device and air conditioner |
| EP3745040A4 (en) * | 2018-03-30 | 2021-04-14 | Gree Electric Appliances (Wuhan) Co., Ltd. | Control method and apparatus for water pump of air conditioner, and water pump of air conditioner |
| CN115419995A (en) * | 2022-09-30 | 2022-12-02 | 海信空调有限公司 | Air conditioner and oil blockage detection method of air conditioner |
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| CN111256253A (en) * | 2020-01-19 | 2020-06-09 | 珠海格力电器股份有限公司 | Refrigerant storage amount detection method, refrigerant storage amount detection device and air conditioner |
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